I think they are called a "beavertail" when it is incorporated into the movable grip safety. Usually on a 1911.
I owned a PPK once and you wouldn't ever see my loaded round indicator sticking out because it was in the desk drawer. It's a pin that sticks out into the bolt face and has to retract as the round being chambered slides up that bolt face. I'm a minimalist and can't see any reason for anything to empede the chambering of a round. Do a press check to see if it's chambered.